Yellowing notes, sentimental conversations, and writing that has faded with time. Do you remember when was the last time you picked up a pen and wrote a letter? Maybe the content of the letter is just random, unimportant things, but this simple act of telling someone our thoughts and the excitement and expectation when receiving a letter seems to have become the most precious memory we do not want to lose. undefinedundefined “I gradually became aware of the importance of paper to people because of work.” undefined Wang, Cing-Fu founded the Pinmo Pure Store in 2009. He remembers that as...